// Press Shift twice to open the Search Everywhere dialog and type `show whitespaces`,
// then press Enter. You can now see whitespace characters in your code.
public class Main {
    public static void main(String[] args) {
        Test2 test2 = new Test2();
        int[] arr = {1,2,5};
        test2.change(5,arr);
        System.out.println(666);
    }
}